CN209119547U - Based on 1064 Mode-locked laser devices of New Two Dimensional composite material graphene/black phosphorus - Google Patents
Based on 1064 Mode-locked laser devices of New Two Dimensional composite material graphene/black phosphorus Download PDFInfo
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- CN209119547U CN209119547U CN201822230914.3U CN201822230914U CN209119547U CN 209119547 U CN209119547 U CN 209119547U CN 201822230914 U CN201822230914 U CN 201822230914U CN 209119547 U CN209119547 U CN 209119547U
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Abstract
The utility model discloses a kind of based on 1064 Mode-locked laser devices of New Two Dimensional composite material graphene/black phosphorus, the continuous light beam that optical fiber laser generates sequentially passes through coupled lens and Nd:YAG crystal and is incident upon on refrative mirror, and the first the reflected beams are generated on refrative mirror, first the reflected beams are incident upon on the first plano-concave mirror, and the second the reflected beams are generated on the first plano-concave mirror, second the reflected beams are incident upon on the second plano-concave mirror, and third the reflected beams are generated on the second plano-concave mirror, third the reflected beams pass through graphene/black phosphorus saturable absorption cuvette and are incident upon on plane mirror.By concentration of the control graphene/black phosphorus in cuvette, different energy bandgaps can be obtained to meet different spectral response ranges, and then realize graphene/black phosphorus saturable absorption cuvette in the operating of different laser wavelengths.For saturable absorbing mirror, use cuvette as saturable absorption carrier, has many advantages, such as that low in cost, recycling, insertion loss are small.
Description
Technical field:
The utility model relates to a kind of based on 1064 Mode-locked lasers of New Two Dimensional composite material graphene/black phosphorus
Device.
Background technique:
2004, with the discovery of graphene, the world, which has been started, had a research boom to carbon group material.Graphene is
A kind of stable two-dimentional monoatomic layer carbon material is connected with the orbital fashion of sp2, forms close hexagonal lattice, single monolayer thick
Degree is 0.335nm.Graphene has more excellent electrooptics performance, such as great field-effect and high carrier mobility, shows
Show the huge prospect as saturable absorber of new generation.However, although graphene have excellent performance, zero
Band gap effect makes the logic switch that cannot achieve semiconductor, greatly limits the application in fields such as semiconductor, photoelectricity.Cause
This, there has been proposed graphenes and the compound ideamonger of other two-dimensional materials.With to two-dimensional material research go deep into, black phosphorus because
Its Thermodynamically stable, low-dimension effect and paid close attention to by people.Two-dimensional material black phosphorus is a kind of the new of the adjustable lamellar structure of band gap
Type semiconductor material has a wide range of applications in photoelectricity, chemistry, catalytic field.Black phosphorus has direct band gap, carrier mobility
Rate can reach 286cm2V-1S-1, while its carrier mobility is related to thickness, when with a thickness of 10nm, carrier mobility
Rate can reach 1000cm2V-1S-1.Graphene/black phosphorus composite material can overcome the shortcomings of graphene itself, be expected to become
A kind of novel nonlinear optics saturable absorber.
Summary of the invention:
The utility model is provided a kind of compound based on New Two Dimensional to solve the above-mentioned problems of the prior art
1064 Mode-locked laser device of material graphene/black phosphorus.
Technical solution used by the utility model has: being locked based on New Two Dimensional composite material graphene/black phosphorus 1064
Mode pulsed laser, it is characterised in that: including the optical fiber laser, coupled lens, Nd:YAG crystal set gradually from left to right
And refrative mirror, it is equipped with the first plano-concave mirror and the second plano-concave mirror in the side of Nd:YAG crystal, is equipped in the side of the second plano-concave mirror
Graphene/black phosphorus saturable absorption cuvette and plane mirror, the continuous light beam that the optical fiber laser generates sequentially pass through coupling
Lens and Nd:YAG crystal are simultaneously incident upon on refrative mirror, and the first the reflected beams are generated on refrative mirror, and the first the reflected beams are incident upon
On first plano-concave mirror, and the second the reflected beams being generated on the first plano-concave mirror, the second the reflected beams are incident upon on the second plano-concave mirror, and
Third the reflected beams are generated on the second plano-concave mirror, third the reflected beams pass through graphene/black phosphorus saturable absorption cuvette simultaneously
It is incident upon on plane mirror；
The central wavelength of the continuous light beam of the optical fiber laser transmitting is 808nm.
Further, the Nd:YAG crystal is coated with 795nm anti-reflection film and 1064nm high towards optical fiber laser on one side
Anti- film, the one side backwards to optical fiber laser plate 1064nm anti-reflection film.
Further, 1064nm high-reflecting film is coated on the refrative mirror.
Further, 1064nm high-reflecting film is coated on the first plano-concave mirror.
Further, 1064nm high-reflecting film is coated on the second plano-concave mirror.
Further, 1064nm high-reflecting film is coated on the plane mirror.
Further, the transmissivity of the plane mirror is 10%.
The utility model has the following beneficial effects:
1) compared to the graphene for belonging to two-dimensional material, black phosphorus possesses direct band gap, and energy is then not present in graphene
Band gap, therefore, graphene/black phosphorus possess broader practice space in nano-transistor field.
2) concentration by control graphene/black phosphorus in cuvette, can be obtained different energy bandgaps to meet difference
Spectral response range, and then realize graphene/black phosphorus saturable absorption cuvette in the operating of different laser wavelengths.
3) for compared to saturable absorbing mirror, use cuvette as saturable absorption carrier, have be easy to regulate and control, at
This is cheap, recycling, the advantages that insertion loss is small.
4) continuous light beam and the first the reflected beams, the second the reflected beams and third the reflected beams of optical fiber laser transmitting
Four mirror W type resonant cavities are collectively constituted, by optimization cavity structure resonant cavity parameter, it can be achieved that based on graphene/black phosphorus
1064nm picoseconds of mode-locked laser stablizes output.
Detailed description of the invention:
Fig. 1 is the utility model structure chart.
Specific embodiment:
The utility model will be further described below with reference to the accompanying drawings.
Such as Fig. 1, the utility model is a kind of based on 1064 Mode-locked lasers of New Two Dimensional composite material graphene/black phosphorus
Device, including optical fiber laser 1, coupled lens 2, Nd:YAG crystal 3 and the refrative mirror 4 set gradually from left to right, in Nd:YAG
The side of crystal 3 is equipped with the first plano-concave mirror 5 and the second plano-concave mirror 6, and being equipped with graphene/black phosphorus in the side of the second plano-concave mirror 6 can
Saturated absorption cuvette 7 and plane mirror 8, the continuous light beam that optical fiber laser 1 generates sequentially passes through coupled lens 2 and Nd:YAG is brilliant
Body 3 is simultaneously incident upon on refrative mirror 4, and the first the reflected beams are generated on refrative mirror 4, and the first the reflected beams are incident upon the first plano-concave mirror 5
On, and the second the reflected beams are generated on the first plano-concave mirror 5, the second the reflected beams are incident upon on the second plano-concave mirror 6, and flat second
Third the reflected beams are generated on concave mirror 6, third the reflected beams pass through graphene/black phosphorus saturable absorption cuvette 7 and are incident upon flat
On face mirror 8, thus through plane mirror 8 and the pulse laser of output high-power, narrow pulse width.
The central wavelength for the continuous light beam that optical fiber laser 1 emits is 808nm, the peak power output of optical fiber laser 1
For 20W.
Nd:YAG crystal 3 is coated with 795nm anti-reflection film and 1064nm high-reflecting film towards optical fiber laser 1 on one side, backwards to light
The one side of fibre laser 1 plates 1064nm anti-reflection film.
1064nm high-reflecting film is coated on refrative mirror 4.
The radius of first plano-concave mirror 5 is 500mm, is coated with 1064nm high-reflecting film on the first plano-concave mirror 5.
The radius of second plano-concave mirror 6 is 200mm, is coated with 1064nm high-reflecting film on the second plano-concave mirror 6.
1064nm high-reflecting film is coated on plane mirror 8, the transmissivity of plane mirror 8 is 10%.
The utility model uses Two-dimensional Composites graphene/mode-locking device of the black phosphorus as pulsed light, utilizes continuous light
The pulse laser generated through graphene/black phosphorus saturable absorber can get high-energy mode locking pulse, then defeated via plane mirror
Out.
The continuous light beam and the first the reflected beams, the second the reflected beams and third the reflected beams that optical fiber laser 1 emits
Four mirror W type resonant cavities are collectively constituted, by optimization cavity structure resonant cavity parameter, it can be achieved that based on graphene/black phosphorus
1064nm picoseconds of mode-locked laser stablizes output.
The working principle of the utility model optical parametric oscillator is: being generated by the optical fiber laser of 808nm continuous
Light enters graphene/black phosphorus saturable absorber, utilizes the arteries and veins of 1064nm obtained by itself unique nonlinear optical properties
Impulse light exports mode-locked laser by plane mirror.The incidence surface of plane mirror plates the anti-reflection film of 1064nm pulse laser, output lock
Mould pulse laser.
Graphene/black phosphorus saturable absorber working principle is: saturable absorber to the absorption of endovenous laser be with
Distribution of light intensity and change, very strong to light absorption when light intensity is weaker, cavity loss increases, therefore light transmission rate is very low.With
The molybdenum disulfide that increases of light intensity weakens the absorption of light, and cavity loss reduces, and saturation is absorbed when light intensity is more than particular value, and light is saturating
Rate is crossed up to 100%, so that light intensity is while obtaining maximum laser pulse by the smallest loss, output intense pulse laser.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
It for art personnel, can also make several improvements without departing from the principle of this utility model, these improvement also should be regarded as
The protection scope of the utility model.
Claims (7)
1. based on 1064 Mode-locked laser devices of New Two Dimensional composite material graphene/black phosphorus, it is characterised in that: including by a left side
Optical fiber laser (1), coupled lens (2), Nd:YAG crystal (3) and the refrative mirror (4) set gradually to the right side, in Nd:YAG crystal
(3) side is equipped with the first plano-concave mirror (5) and the second plano-concave mirror (6), in the side of the second plano-concave mirror (6) equipped with graphene/black
Phosphorus saturable absorption cuvette (7) and plane mirror (8), the continuous light beam that the optical fiber laser (1) generates sequentially pass through coupling
Lens (2) and Nd:YAG crystal (3) are simultaneously incident upon on refrative mirror (4), and the first the reflected beams are generated on refrative mirror (4), and first
The reflected beams are incident upon on the first plano-concave mirror (5), and generate the second the reflected beams, the second the reflected beams on the first plano-concave mirror (5)
It is incident upon on the second plano-concave mirror (6), and generates third the reflected beams on the second plano-concave mirror (6), third the reflected beams pass through graphite
Alkene/black phosphorus saturable absorption cuvette (7) is simultaneously incident upon on plane mirror (8)；
The central wavelength of the continuous light beam of optical fiber laser (1) transmitting is 808nm.
2. as described in claim 1 based on 1064 Mode-locked laser devices of New Two Dimensional composite material graphene/black phosphorus,
Be characterized in that: the Nd:YAG crystal (3) is coated with 795nm anti-reflection film and 1064nm high instead towards optical fiber laser (1) on one side
Film, the one side backwards to optical fiber laser (1) plate 1064nm anti-reflection film.
3. as described in claim 1 based on 1064 Mode-locked laser devices of New Two Dimensional composite material graphene/black phosphorus,
It is characterized in that: being coated with 1064nm high-reflecting film on the refrative mirror (4).
4. as described in claim 1 based on 1064 Mode-locked laser devices of New Two Dimensional composite material graphene/black phosphorus,
It is characterized in that: being coated with 1064nm high-reflecting film on the first plano-concave mirror (5).
5. as described in claim 1 based on 1064 Mode-locked laser devices of New Two Dimensional composite material graphene/black phosphorus,
It is characterized in that: being coated with 1064nm high-reflecting film on the second plano-concave mirror (6).
6. as described in claim 1 based on 1064 Mode-locked laser devices of New Two Dimensional composite material graphene/black phosphorus,
It is characterized in that: being coated with 1064nm high-reflecting film on the plane mirror (8).
7. as described in claim 1 based on 1064 Mode-locked laser devices of New Two Dimensional composite material graphene/black phosphorus,
Be characterized in that: the transmissivity of the plane mirror (8) is 10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822230914.3U CN209119547U (en) | 2018-12-28 | 2018-12-28 | Based on 1064 Mode-locked laser devices of New Two Dimensional composite material graphene/black phosphorus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822230914.3U CN209119547U (en) | 2018-12-28 | 2018-12-28 | Based on 1064 Mode-locked laser devices of New Two Dimensional composite material graphene/black phosphorus |
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| Publication Number | Publication Date |
|---|---|
| CN209119547U true CN209119547U (en) | 2019-07-16 |
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| CN201822230914.3U Expired - Fee Related CN209119547U (en) | 2018-12-28 | 2018-12-28 | Based on 1064 Mode-locked laser devices of New Two Dimensional composite material graphene/black phosphorus |
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- 2018-12-28 CN CN201822230914.3U patent/CN209119547U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190716 Termination date: 20211228 |